Roll reinforced mastic materials

Roll reinforced mastic materials are designed to prevent corrosion when doing capital repair of the insulation covering (re-insulating) gas pipelines being laid. The materials are for pipes of a diameter up to 1420 mm inclusive; product temperature of up to 35 °С or 50° for heat-resistant materials.

 

 

Ratio, measurement unit	Standard as per Technical Specifications
	RAM	DEKOM-RAM  (heat-resistant)	DONRAD-ARM	ARMAS
Appearance of the roll, assessed visually	Even edges.  Obliquity, crowning and saddle shape are allowed, but no more than 5 mm across the width of the roll	Even edges.  Obliquity, crowning and saddle shape are allowed, but no more than 5 mm across the width of the roll	Even edges.  Obliquity, crowning and saddle shape are allowed, but no more than 5 mm across the width of the roll	Even edges.  Obliquity, crowning and saddle shape are allowed, but no more than 5 mm across the width of the roll
Appearance of the roll web, assessed visually	No blank spaces or foreign particles are allowed for the mastic	No blank spaces or foreign particles are allowed for the mastic	No blank spaces or foreign particles are allowed for the mastic	No blank spaces or foreign particles are allowed for the mastic
Plasticity on a beam, rounding radius =10mm, below  the indicated temperature (°С)	-20	-20	-20	-
Coating shear resistance, at a speed of 50 mm/min, t +23±2°С, Mpa	Minimum 0,2	Minimum 0,3	-	-
Water absorption capacity of the material after 1000 h in water at a temperature of +60±2 °С, %	5	5	-	-
Funginertness, maximum ball	2	2	-	-